A tRNA-derived second messenger mediates antiviral defense
Yang Liu, Yan Qin, Imane Bouzit, Ann Yeung, Heather Chang, Jonathan G. Strecker
The paper identifies a CRISPR-associated kinase system that uses a tRNA-derived RNA fragment as a second messenger to enhance antiviral defense by upregulating immune genes.
bioRxiv · Aug 26, 2026 · PreprintMolecular Biology